Tags: devices

Description

On June 30, 1948, AT&T Bell Labs unveiled the transitor to the world, creating a spark of explosive economic growth that would lead into the Information Age. William Shockley led a team of researchers, including Walter Brattain and John Bardeen, who invented the device. Like the existing triode vacuum tube device, the transistor could amplify signals and switch currents on and off, but the transistor was smaller, cheaper, and more efficient. Moreover, it could be integrated with millions of other transistors onto a single chip, creating the integrated circuit at the heart of modern computers.

Today, most transistors are being manufactured with a minimum feature size of 60-90nm--roughly 200-300 atoms. As the push continues to make devices even smaller, researchers must account for quantum mechanical effects in the device behavior. With fewer and fewer atoms, the positions of impurities and other irregularities begin to matter, and device reliability becomes an issue. So rather than shrink existing devices, many researchers are working on entirely new devices, based on carbon nanotubes, spintronics, molecular conduction, and other nanotechnologies.

Learn more about transistors from the many resources on this site, listed below. Use our simulation tools to simulate performance characteristics for your own devices.

Resources (221-240 of 302)

  1. Orbital Mediated Tunneling in a New Unimolecular Rectifier

    25 May 2007 | Online Presentations | Contributor(s): Robert Metzger, NCN SLC@Northwestern

    In 1997 we showed that hexadecylquinolinium tricyanoquinodimethanide is a unimolecular rectifier, by scanning tunneling microscopy and also as a Langmuir-Blodgett (LB) monolayer, sandwiched...

    http://nanohub.org/resources/2748

  2. Piezoelectric Transducers: Strain Sensing and Energy Harvesting (and Frequency Tuning)

    15 Jun 2007 | Online Presentations | Contributor(s): Toshikazu Nishida

    Acoustic pressure or mechanical force sensing via piezoelectric coupling is closely related to the harvesting of electrical energy from acoustical and mechanical energy sources. In this...

    http://nanohub.org/resources/2575

  3. Dripping, Jetting, Drops and Wetting: the Magic of Microfluidics

    13 Jun 2007 | Online Presentations | Contributor(s): David A. Weitz

    This talk will discuss some of the new opportunities That arises by precisely controlling fluid flow and mixing using microfluidic devices. I describe studies to elucidate mechanisms of drop...

    http://nanohub.org/resources/2764

  4. SUGAR: the SPICE for MEMS

    21 May 2007 | Online Presentations | Contributor(s): Jason Clark

    In this seminar, I present some design, modeling, and simulation features of a computer aided engineering tool for microelectromechanical systems (MEMS) called SUGAR. For experimental...

    http://nanohub.org/resources/2735

  5. Solid-State Lighting: An Opportunity for Nanotechnologists to Address the Energy Challenge

    25 Apr 2007 | Online Presentations | Contributor(s): Timothy D. Sands

    More than one-fifth of the electrical power consumed in the U.S. is used for general illumination. Much of this energy is wasted to heat filaments in incandescent lamps, a century-old technology...

    http://nanohub.org/resources/2647

  6. BNC Annual Research Symposium: Nanoelectronics and Semiconductor Devices

    23 Apr 2007 | Online Presentations | Contributor(s): David Janes

    This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the...

    http://nanohub.org/resources/2632

  7. High-Aspect-Ratio Micromachining of Titanium: Enabling New Functionality and Opportunity in Micromechanical Systems Through Greater Materials Selection

    09 Apr 2007 | Online Presentations | Contributor(s): Masa Rao

    Traditionally, materials selection has been limited in high-aspect-ratio micromechanical applications, due primarily to the predominance of microfabrication processes and infrastructure dedicated...

    http://nanohub.org/resources/2590

  8. Atomistic Alloy Disorder in Nanostructures

    26 Feb 2007 | Online Presentations | Contributor(s): Gerhard Klimeck

    Electronic structure and quantum transport simulations are typically performed in perfectly ordered semiconductor structures. Bands and modes are defined resulting in quantized conduction and...

    http://nanohub.org/resources/2350

  9. Surprises on the nanoscale: Plasmonic waves that travel backward and spin birefringence without magnetic fields

    08 Jan 2007 | Online Presentations | Contributor(s): Daniel Neuhauser

    As nanonphotonics and nanoelectronics are pushed down towards the molecular scale, interesting effects emerge. We discuss how birefringence (different propagation of two polarizations) is...

    http://nanohub.org/resources/2256

  10. RF MEMS: Passive Components and Architectures

    02 Jan 2007 | Online Presentations | Contributor(s): Dimitrios Peroulis

    This seminar is an introduction to the MEMS technology as it applies to RF and Microwave systems. Besides discussing several key RF MEMS components (switches, varactors, inductors),...

    http://nanohub.org/resources/2141

  11. Design in the Nanometer Regime: Process Variation

    28 Nov 2006 | Online Presentations | Contributor(s): Kaushik Roy

    Scaling of technology over the last few decades has produced an exponential growth in computing power of integrated circuits and an unprecedented number of transistors integrated into a single....

    http://nanohub.org/resources/2018

  12. Design of CMOS Circuits in the Nanometer Regime: Leakage Tolerance

    28 Nov 2006 | Online Presentations | Contributor(s): Kaushik Roy

    The scaling of technology has produced exponential growth in transistor development and computing power in the last few decades, but scaling still presents several challenges. These two lectures...

    http://nanohub.org/resources/2023

  13. MOSCNT: code for carbon nanotube transistor simulation

    14 Nov 2006 | Downloads | Contributor(s): Siyu Koswatta, Jing Guo, Dmitri Nikonov

    Ballistic transport in carbon nanotube metal-oxide-semiconductor field-effect transistors (CNT-MOSFETs) is simulated using the Non-equilibrium Green’s function formalism. A cylindrical...

    http://nanohub.org/resources/1989

  14. Nanoelectronics 101

    28 Aug 2006 | Online Presentations | Contributor(s): Mark Lundstrom

    Semiconductor device technology has transformed our world with supercomputers, personal computers, cell phones, ipods, and much more that we now take for granted. Moore's Law, posited by...

    http://nanohub.org/resources/1737

  15. Nanoelectronic Architectures

    24 Feb 2005 | Online Presentations | Contributor(s): Greg Snider

    Nanoelectronic architectures at this point are necessarily speculative: We are still evaluating many different approaches to fabrication and are exploring unconventional devices made possible at...

    http://nanohub.org/resources/181

  16. Understanding Phonon Dynamics via 1D Atomic Chains

    04 Apr 2006 | Online Presentations | Contributor(s): Timothy S Fisher

    Phonons are the principal carriers of thermal energy in semiconductors and insulators, and they serve a vital role in dissipating heat produced by scattered electrons in semiconductor devices....

    http://nanohub.org/resources/1186

  17. Three-Dimensional Simulations of Field Effect Sensors for DNA Detection

    03 Aug 2006 | Online Presentations | Contributor(s): Eddie Howell, Gerhard Klimeck

    Here, the development of a DNA field-effect transistor (DNAFET) simulator is described. In DNAFETs the gate structure of a silicon on insulator (SOI) field-effect transistor is replaced by a layer...

    http://nanohub.org/resources/1677

  18. Investigation of the Electrical Characteristics of Triple-Gate FinFETs and Silicon-Nanowire FETs

    08 Aug 2006 | Online Presentations | Contributor(s): Monica Taba, Gerhard Klimeck

    Electrical characteristics of various Fin field-effect transistors (FinFETs) and silicon-nanowires were analyzed and compared using a modified three-dimensional self-consistent quantum-mechanical...

    http://nanohub.org/resources/1715

  19. Chemical Modification of GaAs with TAT Peptide and Alkylthiol Self-Assembled Monolayers

    03 Aug 2006 | Online Presentations | Contributor(s): Hamsa Jaganathan

    The use of self-assembled monolayers (SAM) on semiconductors creates a basis for the design and creation of bioelectronics, such as biosensors. The interface between the surface and an organic...

    http://nanohub.org/resources/1670

  20. Technique for High Spatial Resolution, Focused Electrical Stimulation for Electrically Excitable Tissue

    08 Aug 2006 | Online Presentations | Contributor(s): Matteo Mannino

    Cochlear implant devices have made use of electrode pulses as a method of nerve fiber stimulation since their early conception. Electrode stimulation is limiting in both quality and consistency,...

    http://nanohub.org/resources/1707